Alright, let's work through 76720923 times 17672853 step by step
76720923 × 17672853 = 17672853 × (76720923)
+ 17672853 × 3 resulting in 53018559
+ 17672853 × 20 which equals 353457060
+ 17672853 × 900 that results in 15905567700
+ 17672853 × 0000 which equals 0
+ 17672853 × 20000 that equals 353457060000
+ 17672853 × 700000 giving us 12370997100000
+ 17672853 × 6000000 what gives us 106037118000000
+ 17672853 × 70000000 which equals 1237099710000000

= 1355877594203319
